Would it be possible to save the whole setup, with presets, scales, ranges, loops, etc? Like a “snapshot” of the “session”. I know presets and loops can be saved and I know we can have favourite scales. But it’d be neat if we could have a complete setup loaded all at the same time. For instance, different setups could be associated with different songs.
It sounds somewhat obvious to me and maybe it’s already supported, but I’m not finding that in the interface or in the doc. Then again, what’s obvious to me may be really strange for somebody else…

The presets that you save from the Edit menu actually store the instrument, key, scale, and ranges (including any splits). However, you are right that there is no way to store that plus a loopset together in one easy to load "snapshot preset". That is a good suggestion!